Which of the following method(s) can be used to change the direction of force on a current carrying conductor?
(i) Changing the magnitude of current
(ii) Changing the strength of magnetic field
(iii) Changing the direction of current
Only (i)
Both (i) and (iii)
Only (iii)
Both (ii) and (iii)
Refer to the following letter series and answer the question.
(Left) B E S U Y N O A P S B G S A X T G (Right)
How many letters are there in the English alphabetical series between the letter which is sixth from the left end and the letter which is fifth from the right end of the given series?
Bansi starts from Point A and drives 18 km towards the west. He then takes a left turn, drives 8 km, turns right and drives 3 km. He then takes a right turn and drives 4 km, takes a right turn and drives 21 km and stops at Point B. How far and towards which direction should he drive in order to reach Point A from Point B? (All turns are 90-degree turns only.)
4 km towards the north
8 km towards the south
6 km towards the east
4 km towards the south
If p and q are co-primes, then p7 and q9 are:
primes
co-primes, and composite numbers
co-primes, but not composite numbers
composite numbers, but not co-primes